WO2022217841A1 - 防干磨轴承套及其轴承系统和增压器 - Google Patents

防干磨轴承套及其轴承系统和增压器 Download PDF

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WO2022217841A1
WO2022217841A1 PCT/CN2021/120117 CN2021120117W WO2022217841A1 WO 2022217841 A1 WO2022217841 A1 WO 2022217841A1 CN 2021120117 W CN2021120117 W CN 2021120117W WO 2022217841 A1 WO2022217841 A1 WO 2022217841A1
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Prior art keywords
bearing sleeve
oil
sleeve body
supercharger
same
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PCT/CN2021/120117
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English (en)
French (fr)
Inventor
欧永健
靳鹏
李峰
姚国瑞
阳宇宁
张焕芳
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湖南天雁机械有限责任公司
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Publication of WO2022217841A1 publication Critical patent/WO2022217841A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/166—Sliding contact bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N21/00—Conduits; Junctions; Fittings for lubrication apertures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N31/00—Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus
    • F16N31/02—Oil catchers; Oil wipers

Definitions

  • the invention belongs to the technical field of mechanical fitting design, and in particular relates to an anti-dry wear bearing sleeve, a bearing system thereof, and a supercharger.
  • turbocharging technology has become one of the most critical measures to improve the economy, power and emission standards of internal combustion engines.
  • high pressure ratio, extended range, and hybrid turbocharging technology the impact of frequent power switching on the supercharger bearing system continues to increase.
  • the bearing sleeve used in the existing supercharger bearing system As shown in Figure 2, as the axial force continues to increase, the lubricating oil inlet pressure decreases, especially when the power of the hybrid vehicle is switched, the engine immediately stops supplying oil, but at this time the supercharger is running at a high speed, and the rotor system Continue to run for more than 10 seconds under inertial force, resulting in dry wear of the bearing system.
  • each supercharger factory has carried out a series of optimization improvements on the bearing sleeve and bearing system, but it only improves the wear resistance of the bearing under the condition of lubricating oil. It does not fundamentally solve the dry grinding phenomenon of bearings without lubricating oil.
  • the purpose of the present invention is to overcome the above deficiencies of the prior art and provide an anti-dry wear bearing sleeve.
  • an anti-dry wear bearing sleeve comprising a bearing sleeve body, an oil inlet groove, an oil inlet hole and an oil return hole are opened on the bearing sleeve body, the inner cavity of the bearing sleeve body has a rotor shaft supporting surface, and the bearing sleeve The inner cavity of the body is provided with an oil storage tank at the non-rotor shaft supporting surface.
  • a further technical solution of the present invention is that the oil storage tank is located at the middle section of the bearing sleeve body.
  • a further technical solution of the present invention is that: the oil inlet groove is provided near the end of the bearing sleeve body.
  • a further technical solution of the present invention is that: the number of oil inlet grooves is two, which are respectively distributed at both ends of the bearing sleeve body.
  • a further technical solution of the present invention is that the oil return hole is opened at the position where the oil storage tank is located.
  • Another technical solution of the present invention is: a bearing system provided with the above-mentioned anti-dry wear bearing sleeve.
  • Another technical solution of the present invention is: a supercharger, which is provided with the above-mentioned anti-dry wear bearing sleeve.
  • the present invention has the following beneficial effects:
  • the oil storage tank can store a certain amount of lubricating oil, which can effectively solve the dry friction problem of the supercharger bearing system during the frequent power conversion of various mechanical devices. It can also prevent dry friction failure of the supercharger bearing system when the engine is cold started in winter;
  • the oil storage tank can automatically store part of the lubricating oil when the bearing system stops working, without artificially adding lubricating oil, and the whole mechanical device or the engine does not need to be pre-prepared in advance when the engine is restarted when the engine has not been used for a long time. lubricating.
  • Embodiment 1 is a schematic structural diagram of the anti-dry wear bearing sleeve described in Embodiment 1;
  • FIG. 2 is a schematic structural diagram of a bearing sleeve in the prior art.
  • a supercharger applied to a vehicle is provided.
  • the supercharger is equipped with a bearing system.
  • the vehicle is a hybrid vehicle, and it is easy to cause a dry grinding problem to the bearing system during power switching.
  • the bearing system includes an anti-dry grinding.
  • the bearing sleeve includes a bearing sleeve body 1, an oil inlet groove 2 is respectively opened at both ends of the bearing sleeve body, a plurality of oil inlet holes 3 are distributed on the oil inlet groove, and both ends of the inner cavity of the bearing sleeve body 1 are provided There is a rotor shaft support surface 4, and an oil storage tank 5 is arranged at the middle section of the inner cavity of the bearing sleeve body.
  • the oil storage tank is formed by recessing the original inner cavity wall to the outer peripheral surface of the bearing sleeve body.
  • the oil storage tank 5 can always automatically store a certain amount of lubricating oil without adding lubricating oil manually. It can effectively avoid the dry friction phenomenon of the supercharger bearing system during the frequent conversion of vehicle power, and also prevent the dry friction failure of the supercharger bearing system when the engine is cold started in winter; When the engine needs to be started again, because there is already a certain amount of lubricating oil in the oil storage tank during the previous use, there is no need to pre-lubricate the supercharger before it can be started normally.
  • the present invention is not limited to the above-mentioned specific structure or connection mode, as long as the bearing sleeve has the same or similar ideas as the technical solution, it falls within the protection scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supercharger (AREA)

Abstract

一种防干磨轴承套及其轴承系统和增压器，防干磨轴承套包括轴承套本体（1），轴承套本体（1）上开设有进油槽（2）、进油孔（3）和回油孔（6），轴承套本体（1）内腔具有转子轴支撑面（4），轴承套本体（1）内腔在非转子轴支撑面处设置储油槽（5）。润滑油从进油孔（3）到回油孔（6）流经储油槽（5）的过程中，储油槽（5）可存储一定量的润滑油。

Description

防干磨轴承套及其轴承系统和增压器 技术领域
本发明属于机械配件设计技术领域，具体地，涉及一种防干磨轴承套及其轴承系统和增压器。
背景技术
随着内燃机强化程度的不断提高以及排放标准的日益严格，涡轮增压技术成为提高内燃机经济型、动力性以及排放标准最为关键的措施之一。随着高压比和增程式、以及混合动力的涡轮增压技术的发展，其承受的频繁动力切换给增压器轴承系统带来的冲击不断加大，现有增压器轴承系统采用的轴承套如附图2所示，随着轴向力不断增加，润滑油进口压力反而有所下降，特别是混合动力车型动力切换时发动机立即停止供油，但此时增压器处于高速运转，转子系统在惯性力下继续运行10秒钟以上，导致轴承系统干磨损。
为了确保增压器可靠运行，满足发动机可靠性要求，各增压器厂在轴承套和轴承系统上进行了一系列的优化改进，但也只是提高了轴承在有润滑油工况下的耐磨能力，没有从根本上解决轴承在无润滑油状态下的干磨现象。
发明内容
本发明的目的是克服现有技术的上述不足，提供一种防干磨轴承套。
本发明的技术方案是：一种防干磨轴承套，包括轴承套本体，轴承套本体上开设有进油槽、进油孔和回油孔，轴承套本体内腔具有转子轴支撑面，轴承套本体内腔在非转子轴支撑面处设置储油槽。
本发明进一步的技术方案是：储油槽位于轴承套本体中段处。
本发明更进一步的技术方案是：进油槽开设在靠近轴承套本体端部处。
本发明再进一步的技术方案是：进油槽数量为两个，分别分布在轴承套本体两端。
本发明进一步的技术方案是：回油孔开设在储油槽所处位置处。
本发明的另一技术方案是：一种轴承系统，设有上述的防干磨轴承套。
本发明的另一技术方案是：一种增压器，设有上述的防干磨轴承套。
本发明与现有技术相比具有如下有益效果：
润滑油从进油孔到回油孔流经储油槽的过程中，储油槽可存储一定量的润滑油，有效解决各种机械装置在动力频繁转换过程中增压器轴承系统干摩擦问题，同时还可防止发动机冬天冷启动时增压器轴承系统发生干磨擦故障；
此外，储油槽可在轴承系统等停止工作时自动存储部分润滑油，无需人为加入润滑油，且机械装置整体或发动机在长时间未使用的情况下再次启动发动机时无需提前给增压器进行预润滑。
以下结合附图和具体实施方式对本发明的详细结构作进一步描述。
附图说明
图1为实施例1所述的防干磨轴承套的结构示意图；
图2为现有技术中轴承套的结构示意图。
具体实施方式
实施例1
提供一种应用在车辆上的增压器，增压器内设轴承系统，车辆为混合动力车型，在动力切换时容易给轴承系统带来干磨问题，本实施例中轴承系统包括防干磨轴承套，如图1所示，轴承套包括轴承套本体1，轴承套本体两端分别开设有一个进油槽2，进油槽上分布多个进油孔3，轴承套本体1内腔两端设有转子轴支撑面4，轴承套本体内腔中段处设置有储油槽5，储油槽为由原内腔壁往轴承套本体外周表面方向凹进形成，轴承套本体在储油槽5中心位置对应处开设有两个呈水平方向的回油孔6，润滑油从进油孔3向回油孔6流通的过程中，储油槽5始终可自动储存一定量的润滑油，不需人为加入润滑油，有效避免车辆动力频繁转换过程中增压器轴承系统产生干磨擦现象，同时也可防止发动机冬天冷启动时增压器轴承系统干磨擦故障；此外，整车或发动机长时间未使用的情况下，需再次启动发动机时，因为前次使用时储油槽内已存有定量润滑油，也无需提前给增压器进行预润滑即可正常开启工作。
本发明不局限于上述的具体结构或连接方式，只要是具有与本技术方案思路相同或相近的轴承套就落在本发明的保护范围之内。

Claims (7)

  1. 一种防干磨轴承套，包括轴承套本体(1)，轴承套本体上开设有进油槽(2)、进油孔(3)和回油孔(6)，轴承套本体内腔具有转子轴支撑面(4)，其特征是：轴承套本体(1)内腔在非转子轴支撑面处设置储油槽(5)。
  2. 根据权利要求1所述的防干磨轴承套，其特征是：储油槽(5)位于轴承套本体(1)中段处。
  3. 根据权利要求1或2所述的防干磨轴承套，其特征是：进油槽(2)开设在靠近轴承套本体端部处。
  4. 根据权利要求3所述的防干磨轴承套，其特征是：进油槽(2)数量为两个，分别分布在轴承套本体(1)两端。
  5. 根据权利要求1或2所述的防干磨轴承套，其特征是：回油孔(6)开设在储油槽所处位置处。
  6. 一种防干磨轴承系统，其特征是：设有如权利要求1～5任意一项所述的防干磨轴承套。
  7. 一种增压器，其特征是：设有如权利要求1～5任意一项所述的防干磨轴承套。
PCT/CN2021/120117 2021-04-12 2021-09-24 防干磨轴承套及其轴承系统和增压器 WO2022217841A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN113153908A (zh) * 2021-04-12 2021-07-23 湖南天雁机械有限责任公司 防干磨轴承套及其轴承系统和增压器

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CN113153908A (zh) * 2021-04-12 2021-07-23 湖南天雁机械有限责任公司 防干磨轴承套及其轴承系统和增压器

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CN202833650U (zh) * 2012-08-13 2013-03-27 沈阳骏朗汽车零部件制造有限公司 一种涡轮增压器的浮动轴承
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